Invite teachers to a class

This page is for teachers.

You can invite co-teachers to join your class to help coordinate class activities. If you use Google Groups, you can also invite a group of co-teachers at the same time.

Invite co-teachers or groups of co-teachers

Note: To invite teachers using Google Groups, you don't have to be the owner or a member of the group, but you must be able to view group members and view email addresses. If you can't view the list, contact your administrator to change the permissions. Learn more about Troubleshooting Invitations.

  1. Go to and click Sign In.

    Sign in with your Google Account. For example, or you@gmail.comLearn more.

  2. Click the class you want to add co-teachers or groups to. 
  3. At the top, click People.

    People page

  4. Click Invite Invite.

    Invite teachers

  5. You can invite individual teachers or a group. Enter the teacher's or group's email address.

    As you enter text, an autocomplete list might appear.

  6. From the Search results, click a teacher or group. Or, click Add recipient.
  7. (Optional) To invite more teachers or groups, repeat steps 5-6.
  8. Click Invite.

Note: The class list is updated to show the names of invited teachers. Invited teachers receive an email. To join the class, the co-teacher must sign in to Classroom and click Accept on the class card.

About permissions for co-teachers

There are a few class permissions to be aware of:

  • Only the primary teacher can delete a class.
  • The primary teacher can't unenroll or be removed from a class.
  • Only the primary teacher can opt-out of using Classwork for a class.
  • Teachers can't be muted in a class. 
  • The primary teacher owns the class Google Drive folder.
  • After a co-teacher joins the class, the co-teacher has access to the class Google Drive folder.
Class size limitations

G Suite for Education accounts

For teachers with a G Suite for Education account, Classroom has the following size limitations for each class:

  • Maximum number of teachers: 20
  • Maximum number of members (teachers and students): 1,000

Note: Classroom uses Google Groups for all students and teachers with G Suite for Education accounts. Each person can only be in a certain number of groups. See the Membership section of Groups policies and limits for details.

Personal Google Accounts

Teachers with a personal Google Account also have additional limits on activity, such as creating classes or inviting students. Learn more about Policies and limits.

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